Using the Circle Technique. 1  1. Place the shoes on a flat surface. 2  2. Tie a basic knot. 3  3. Tie another knot, but donât tighten it.  4. Thread one shoelace into the 1  circle. 5. Thread the other shoelace into the circle.  6. Pull the bunny ears tight.
The caffeine in coffee can also contribute to stomach pain through several different means. Caffeine stimulates the central nervous system, which can cause the stomach to produce excess stomach acid. This excess stomach acid can contribute to gastritis or ulcer formation.
Effects. Caffeine in general has a number of effects on the natural processes of the body. For starters it can quickly and easily raise a person's blood pressure. It can also irritate the lining of a person's stomach because it causes more stomach acid than normal to be produced. This can result in stomach aches and even ulcers.